@book{2190,
	author = {Sánchez Barriga, Arturo.},
	title = {Surfactantes en la acción biológica de herbicidas postemergentes en invernadero y campo},
	publisher = {El Autor,},
	year = {1991},
	address = {Chapingo, Méx. :},
	note = {D44-224}
}